Kepler-289
Kepler-289 e
Rank #78 of the ranked catalogue · Discovered by Transit in 2025
HZ 14%measured
0.138
Earth-2.0 index
0.702
Earth Similarity Index
14%
Habitable-zone probability
2.94 R⊕
Radius
Planet
Mass17.400 M⊕measured
Bulk density2.920 g/cm³
Orbital period330.0716 days
Semi-major axis0.93420 au
Eccentricity0.000
Incident flux1.580 S⊕
Equilibrium temperature285.0 K
Transit-time σ at 2030200.2 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation1.33 masReflected-light contrast 1.72e-9 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources5 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage50%0% median composite-to-default difference over shared parameters.
Host star & system
HostKepler-289
Spectral typeG
Effective temperature5990 K
Radius0.985 R☉
Mass1.061 M☉
Distance704.4 pc / 2297.6 ly
DiscoveryTransit, 2025